Google
Google
Any time
  • Any time
  • Past hour
  • Past 24 hours
  • Past week
  • Past month
  • Past year
Verbatim
Explorer 1 was the first satellite launched by the United States and was part of the U.S. participation in the International Geophysical Year (IGY).
People also ask
Is Explorer 1 still in orbit?
What is the purpose of Explorer 1?
The primary science instrument on Explorer 1 was a cosmic ray detector designed to measure the radiation environment in Earth orbit. Once in space this experiment, provided by Dr. James Van Allen of the State University of Iowa, revealed a much lower cosmic ray count than expected.
What was Sputnik and Explorer 1?
Explorer 1 was the United States' first satellite in space. ... The satellite marked a moment when the United States got its confidence back after a series of unsuccessful launches and the Soviet Union's successful launch of Sputnik.
Sep 29, 2020
Who was involved in Explorer 1?
Russia had launched Sputnik 1, the world's first artificial satellite, on October 4, 1957. Explorer 1 was launched in quick response by the U.S. It was designed and built in under three months at the Jet Propulsion Laboratory (JPL) by a team led by William Hayward Pickering.
Aug 3, 2017 · Explorer 1 was the first U.S. satellite and the first satellite to carry science instruments. The satellite was launched on Jan. 31, 1958, from ...
Explorer 1 became the first successfully launched satellite by the United States when it was sent to space on January 31, 1958. A quick response to the ...
Sep 29, 2020 · Explorer 1 was the United States' first satellite in space. The 1958 launch of the satellite — twice the size of a basketball — was an important ...
Jan 31, 2018 · On Jan. 31, 1958, the United States launched its first successful satellite: Explorer 1. See how the historic mission worked here.
Video for Explorer 1
Jan 24, 2018 · Against the backdrop of the 1950s Cold War, after the Soviet Union successfully launched ...
Duration: 3:31
Posted: Jan 24, 2018
1530 results · Rolex Explorer on Chrono24.com. Daily new offers. In stock now. Safe favorite watches & buy your dream watch.
Feb 16, 2021 · Rolex Predictions 2021 - Bringing more options to the Crown's classic adventure watch, with the Explorer 1 in 36mm and 41mm cases, and with ...
Apr 8, 2020 · Explorer 1 was the first successfully launched U. S. spacecraft. Launched late on 31 January 1958 (10:48 p.m. EST, or 03:48 UTC on 01 ...
Explorer-1, also known unofficially as Satellite 1958 alpha, transmitted data on micrometeorites and cosmic radiation for 105 days. Data from this and two ...